Distribution of inorganic mercury (Hg) into both acid-soluble and protein-bound fractions of proximal tubular (PT) cells from the rat increased with increasing concentrations of Hg up to 10 microM. Little correlation was found between subcellular distribution of Hg and dose in distal tubular (DT) cells. Cellular accumulation of Hg was rapid, reaching equilibrium values by 10 to 15 min. Cellular...

The peculiar property of Optimality Theory (OT) is that it uses constraint ranking and thus enforces strict domination, according to which the highest ranked relevant constraint “takes it all”; see Prince & Smolensky (2004). Because of this property, OT looks prima facie like an exotic combinatorial framework. Exotic in the sense that it does not seem to have any close correspondent within core...

Electronic relaxation dynamics following interband excitation from the 6s to the 6p band in mass selected Hg 13 clusters are measured through femtosecond time-resolved photoelectron imaging (TRPEI). This interband transition is pumped at 4.65 eV and probed at 1.55 eV. Auger decay of occurs on a timescale of 490 ± 100 fs, and a similar time constant is seen for the transient excited state popula...

The luminescence of mercury clusters in the gas phase has been studied extensively in the past [ 11. Mercury vapor shows many emission bands including the ultraviolet (A,,=335 nm) and green (1,,,=485 nm) luminescence which originate from excited dimers Hg2 and trimers Hg,, respectively. In contrast to the gas phase very little is known about the emission of mercury clusters in the condensed pha...

A novel, simple, sensitive and effective method has been developed for preconcentration of Hg(II) on nano-Fe3O4-DOP-ED solid-phase extraction adsorbent. In this paper, Dioctyl phthalate (DOP) was used to encapsulate nano-Fe3O4 and produce a nano-Fe3O4-DOP sorbent based new sorbent was prepared. This was treated with ethylenediamine (ED) in another solvent-free procedure for the formation of a n...

This study determined the daily intake of copper (Cu), lead (Pb), zinc (Zn) and mercury (Hg) in order to assess both carcinogenic non-carcinogenic risks caused by heavy metals Tilapia guineensis Lagos Lagoon. The were using flame atomic absorption spectrophotometer. metal distribution was Zn > Cu Pb Hg with values 0.0248±0.04, 0.0093±0.01, 0.0005±0.00 0.000±0.00 mg/kg respectively. Daily Int...